Courteous Reader, this ensuing Treatise hath lien by mee a long time, penned, but in a confused and undigested manner, as I gathered it, practised, or found it out by industry and experience. It was not in my minde to have as yet exposed it to the publique view: but being sollicited by the intreaties of some, and those not a few, to impart to each particular person what his Genius most affected; I was enforced as well for the satisfying of their requests, as for the avoydance of many inconvenien